Q141
Q140
Q202
Q2
Q
Q111
Q243
Q242
IC3401
MTS
IC110
IC201
IF/VIDEO/CHROMA
VR191
AGC
TP-D
X141
TP-A
L171
KP
Q131
X242
X161
A
1
0
1
T
U
N
E
R
X
2
4
3
X
2
4
1
IC201
1H DELAY
KS
Base
TP20
TP301
C3407
TP317
C3437
Frequency
Counter
Ground with
jumper wire
GND
MAIN BOARD
Adjustment in the Service Mode
-12-
Sound Input Level Adjustment
1. Connect a signal generator to TP301 (C3407, - side) on
the Main Board and ground. Signal output=300Hz, 150mVrms.
2. Connect a DC Volt-Meter to TP-317 (C3437, + side) and
ground.
3. Ground TP-20 (base of Q131) with the jumper lead. (Setting
of the no signal condition).
4. Switch the TV set on.
Press and hold the MENU button on the TV set, then press
“3” button on the remote control transmitter to enter the
Service Mode.
(Service Mode)
5. Adjust voltage to become DC 500mVrms±10mVrms by
pressing the /-) button on the remote control or
TV set.
6. To exit from the service mode, press the MENU button.
Stereo VCO Adjustment
1. Connect a frequency counter to TP317 (C3437, + side) and
ground.
2. Ground C161 with the jumper lead.
3. Switch the TV set.
Press and hold the MENU button on the TV set, then press
“3” button on the remote control transmitter to enter the
Service Mode.
4. Select “STEREO VCO” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
O-R
MENU
3
Q141
Q140
Q202
Q2
Q
Q111
Q243
Q242
IC3401
MTS
IC110
IC201
IF/VIDEO/CHROMA
VR191
AGC
TP-D
X141
TP-A
L171
KP
Q131
X242
X161
A
1
0
1
T
U
N
E
R
X
2
4
3
X
2
4
1
IC201
1H DELAY
KS
Base
TP20
TP301
C3407
TP317
C3437
Signal
Generator
Volt Meter
Ground with
jumper wire
GND
GND
MAIN BOARD
O-R
MENU
3
INPUT LEVEL 25
STEREO VCO 23
FILTER 32
LOW SEPARATION 29
HI SEPARATION 26
SAP VCO 27
ADJUST: - /+
CHOOSE:
▲▼
EXIT:MENU
(Service Mode)
INPUT LEVEL 25
STEREO VCO 23
FILTER 32
LOW SEPARATION 29
5. Adjust the frequency to become 15.625KHz ± 0.1KHz by pressing
the VOLUME (+/-) button on the remote control or TV set.
6. To exit from the service mode, press the MENU button.
INPUT LEVEL 25
STEREO VCO 23
FILTER 32
LOW SEPARATION 29
HI SEPARATION 26
SAP VCO 27
ADJUST: - /+
CHOOSE:
▲▼
EXIT:MENU
Содержание 29-F5BA
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